

"Diamonds on her meant trouble!"
British diamond smugglers use the radiowoman (Phyllis Kirk) from a freighter docked on the Thames to unwittingly "mule" their swag, hidden in cigarettes, past customs, not knowing that she has befriended an Inspector for the Thames River Patrol.
Det. Insp. Dan Barker

Judy Roberts

Det. Sgt. Mack McLeod
Charlie Williamson

Albert Fisher, called both "Al" and "Bert"

Steward Alfred Gordon, also called "Al"
Paddy Maclure

John Hendrick

Ship's Captain Watford

Customs Chief J. S. Blake

Adams